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These simulated potentiometric surface contours represent prepumping (or steady-state) conditions for model layer 1 of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The numerical ground-water flow model simulates prepumping conditions before 1913 and transient-flow conditions from 1913 to 1998 after pumping of ground water began. The DVRFS transient ground-water flow model is the most recent in a number of regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation",...
Types: Citation; Tags: Clayton Valley, MODFLOW-2000, Clark County, China Ranch, Shoshone, All tags...
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This digital geospatial data set contains the locations, values, and uncertainties of hydraulic-head observations used in the calibration of the transient model of the Death Valley regional ground-water flow system (DVRFS). The hydraulic-head observations were developed by compositing one or more water-levels measured in wells throughout the DVRFS model domain, a 45,000 square-kilometer region of southern Nevada and California. To develop hydraulic-head observations, nearly all available water levels for the DVRFS region through 2004 were compiled in Ground-Water Site Inventory (GWSI), the ground-water component of the U.S. Geological Survey (USGS) National Water Information System (NWIS) database. Water levels...
Types: Citation; Tags: water well, Clayton Valley, MODFLOW-2000, Clark County, China Ranch, All tags...
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This digital dataset defines the surface traces of regional geologic structures designated as potential ground-water flow barriers in an approximately 45,000 square-kilometer area of the Death Valley regional ground-water flow system (DVRFS) in southern Nevada and California. Most geologic structures representing potential flow barriers were faults that were identified on the basis of length, offset, type of slip, orientation with respect to predominate ground-water flow directions, the location of springs, abrupt water level offsets, and hydraulic characteristics (Sweetkind and others, 2004). A subset of the potential ground-water flow barriers was incorporated into a transient ground-water flow model of the DVRFS...
Types: Citation; Tags: Clayton Valley, Clark County, China Ranch, Shoshone, Death Valley, All tags...
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This digital data set defines the boundary of the southwestern Nevada volcanic field (SWNVF), an area of thick, regionally distributed volcanic rocks within the Death Valley regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. The SWNVF boundary encompasses an approximate 12,000 square-kilometer region and is based on a map of hydrogeologic controls on ground-water flow by Laczniak and others (1996). The SWNVF is characterized in part by a thick section of regionally distributed welded tuffs derived from a central complex of nested calderas that erupted from about 16 Ma to 5 Ma. The SWNVF boundary defines the extent of these particular volcanics and was...
Types: Citation; Tags: California Valley, Saline Valley, Yucca Mountain, Spring Mountains, Sarcobatus Flat, All tags...
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This digital dataset defines the well locations for hydraulic-head observations used in the calibration of the transient hydrologic model of the Central Valley flow system. The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the USGSs numerical modeling code MODFLOW-FMP (Schmid and others, 2006). This application is referred to here as the Central Valley Hydrologic Model (CVHM) (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis from 1961-2003. The USGS and DWR...
Types: Citation; Tags: CV-RASA, hydraulic head, Sutter County, Groundwater Availability of the Central Valley Aquifer, Ventura County, All tags...
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This digital data set is a compilation of reference points representing surface-water features, ground-water levels, and topographic settings in California that were used for the regional ground-water potential map by Bedinger and Harrill (2004). The regional ground-water potential map was developed to assess potential interbasin flow in the Death Valley regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. To obtain an adequate network of control points, Bedinger and Harrill (2004) also used regional potential altitudes derived from springs and deep well data. A set of general guidelines was developed to relate regional ground-water potential to these more...
Types: Citation; Tags: water well, Clayton Valley, Clark County, ground-water recharge, China Ranch, All tags...
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This digital dataset defines the depth of the Corcoran Clay Member of the Tulare Formation. The complex hydrologic system of the Central Valley is simulated using the USGS numerical modeling code MODFLOW-FMP (Schmid and others, 2006b). This simulation is referred to here as the Central Valley Hydrologic Model (CVHM) (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis from 1961-2003. Numerous lenses of fine-grained sediments are distributed throughout the southern Central Valley (San Joaquin Valley) and generally constitute more than 50 percent of the total thickness of...
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This digital dataset contains monthly reference evapotranspiration (ETo) data for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the USGS numerical modeling code MODFLOW-FMP (Schmid and others, 2006b). This simulation is referred to here as the CVHM (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis from 1961-2003. The total active modeled area is 20,334 square-miles on a finite-difference grid comprising 441 rows...
Types: Citation; Tags: CV-RASA, Sutter County, Groundwater Availability of the Central Valley Aquifer, Ventura County, Solano County, All tags...
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This digital data set defines the boundaries of the deserts of the southwestern United States. Those deserts include the Great Basin, Mojave, Colorado, and Sonoran Deserts as defined by Benson and Darrow (1981). The study by Benson and Darrow (1981) was a historical reference used to support development of the transient ground-water model of Death Valley regional ground-water flow system (DVRFS) completed in 2004 by the USGS (see "Larger Work Citation", Chapter A, page 8, for details).
Types: Citation; Tags: water well, Clayton Valley, Clark County, ground-water recharge, China Ranch, All tags...
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.


map background search result map search result map Boundary of the southwestern Nevada volcanic field from Laczniak and others (1996), for the Death Valley regional ground-water flow system study, Nevada and California Contours of Corcoran Clay Depth in feet from Page (1986) for the Central Valley Hydrologic Model (CVHM) Evapotranspiration Input Data for the Central Valley Hydrologic Model (CVHM) Locations of hydraulic-head observations (HOBS) for the Central Valley Hydrologic Model (CVHM) Deserts of the southwestern United States, for the Death Valley regional ground-water flow system study, Nevada and California Simulated potentiometric surface contours of prepumping conditions in layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Potential structural barriers to ground-water flow, Death Valley regional ground-water flow system, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Topographic reference points in California for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California USGS Combined Vector for La Panza NE, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Lamont Peak, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mount Adelaide, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Posey, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Conner, California 20160806 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Conner, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Edwards, California 20160807 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Inyokern SE, California 20160808 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lost Hills NE, California 20160807 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Carneros Rocks, California 20160808 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rosamond, California 20160808 7.5 x 7.5 minute Shapefile USGS Combined Vector for La Panza NE, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Lamont Peak, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mount Adelaide, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Posey, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Conner, California 20160806 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Conner, California 20160806 7.5 x 7.5 minute Shapefile USGS Combined Vector for Edwards, California 20160807 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Inyokern SE, California 20160808 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lost Hills NE, California 20160807 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Carneros Rocks, California 20160808 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rosamond, California 20160808 7.5 x 7.5 minute Shapefile Boundary of the southwestern Nevada volcanic field from Laczniak and others (1996), for the Death Valley regional ground-water flow system study, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours of prepumping conditions in layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Potential structural barriers to ground-water flow, Death Valley regional ground-water flow system, Nevada and California Contours of Corcoran Clay Depth in feet from Page (1986) for the Central Valley Hydrologic Model (CVHM) Topographic reference points in California for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California Locations of hydraulic-head observations (HOBS) for the Central Valley Hydrologic Model (CVHM) Evapotranspiration Input Data for the Central Valley Hydrologic Model (CVHM) Deserts of the southwestern United States, for the Death Valley regional ground-water flow system study, Nevada and California